Cognomen Rithen (Rithen 
, รีเทล 
) , around the world, is a rare family name. The surname Rithen is characteristic of Thailand, where it is a rare surname, Israel, where it is a very rare surname, and the United States, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Thailand, India, and Israel. Much less frequently, Rithen is the forename as well as the last name.